Attachment for engines.



. F. R. NYBERG. I I ATTACHMENT FOR ENGINES.

APPLICATION FILED AUG. II. I914. v

1,142,612. Patented June 8,1915.

2 SHEETS-SHEET I.

WWI/E8858 W I I/I/I/EIVTOR ATTAGHMEM FOR ENGINES. APPLlCATlON FILED Aus.n. 1914.

Patented June 8,1915.

2 SHEETSSHEET 2- WI I E8858 a. L-QMM" v F ATTORNEYS FRANK RUDOLPHNYBEBG, OF-LA MAR, COLORADO, ASSIGNQR 0F ONE-HALF TO J. GARVIN, OFLAMAR, COLORADO.

-of Lamar, in thecounty of Prowers and State of Colorado, have inventeda new and useful Improvement in Attachments for Engines, ofqyhich thefollowing is a specification'.

My invention is an improvement in wheels for traction engines, and thelike, and has-for its object to provide mechanism in connection with theusual drivewheel, for permitting the mud cleats usually used on theperiphery of the wheel to bedispensed with, and wherein the saidmechanism is so arranged that it'may be brought into and out ofoperative position whenever desired.

. In the drawings, Figure 1 is a vertical section through a wheelprovided with the attachment, Fig. 2 is a side View of the wheel withparts broken away, Fig. 3 is a perspective view of the attaching ring,Fig.

4 is a partial side view showing the parts in another position, and Fig.5 is a section on the line 55 of Fig. 2, looking in the direction ofthearrows adjacent to the line.

The present embodiment of the invention is shown in connection with awheel having a rim 1, a hub 2, and spokes 3 and 3? connecting thehub andrim. Two series of spokes are provided, the series 3 being inclined. andthe series 3 being perpendicular to both rim and hub. The hub 2isprovided -with annular ribs 4 and P, and the spokes of series 3 areconnected at their inner ends to the rib 4 by rivets 5 or the like. Theouter ends of the spokes of series 3 and 3 are provided with laterallugs 6 which abut the inner surface of the rim 1, and are securedthereto by. means of bolts or rivets 7 The inner ends of the spokes ofseries 3 are secured to the rib 4, by rivets 5 similar to the rivets 5,before mentioned.

It will be noted from an inspection of Fig. 1, that the rib 4 is at oneedge of the rim 1 ofthe wheel, and that the rib 4 is at approximatelythe center of the width of the rim. so that a portion of the interiorofthe wheel, between the rim 1 and the hub 2 isleftfree andunobstructedfor the insertion of the attachment. This attachmentcomprises a ring Shaving a central opening fitting the hub 2, and thering is provided at itsinner face with a marginal flange 9.

Specification of Letters Patent. Application filed August 11, 1914.Serial n sseasa s'rA jEs PATENT on 205E.

ATTACHMENT non ENGINES.

Patented June 8, 1915.

is mounted on the ring, between the flange 9 and the disk 10. Theeccentric 11 is mounted to rotate on. the ring, or at least to moveangularly with respect thereto, and the said eccentricis provided with amarginal flange 12 at its inner face. A ring 13 is fitted onto the ringagainst the outer face of the eccentric, and the said ring 13 fits theperipheral surface of the'ring 8. The disk 10 fits outside of the inneredge of the ring 13 to-hold it in place, and the disklO is secured inplace bymeans of clips 14, each of which embraces a spoke 3 and passesthrough the ring 8 and the disk 10, and the arms ofeach clip are engagedby nuts'l't on the outer face of=the disk 10.

A ring 15 is arranged between the peripheral surface of the eccentricand the rim- 1 the said ring having notches 16 in and radial to thering, and adjacent to each of'the openings 17 a smaller opening faces ofcnonen 18 is provided. Theopenings 18 are adapted to register withsimilar openings in the rim 1, and bolts 19 are passed through theopenings of the rim, and the openings 18 of the ring, and each bolt isengaged by a nut 20 on the inner face of the ring. The ring is thus heldin spaced relation with respect to the rim. The openings 17 of the ringare adapted' to register with similar openings 21 in the rim 1, and dogs22 are mounted to move radiallyin the registering openings 17 and-21Each of the dogs 22 is provided at its inner end with a fork, and thearms 23 .of the fork extend on opposite sides of a roller or wheel 2 1,and the wheel is journaled between the arms on a journal pin 25.

The rollers 24L engage the peripheral surface of the eccentric, betweenthe flange 12 and the ring 13.

A coil spring 2(iencircles each dog between the rim 1 and a cotter pin27 extending transversely through an opening in the dog, and the c'otterpins are soarranged/ 1111 with respect toithe dogs, that said pin engagethe peripheral surface of the ring 15 when the outer end of the dog isflush with the peripheral surface of the rim 1. The eye of each cotterpin 27 encircles the adjacent rod 19, and the rod acts thus as a guidefor the cotter pin. The springs 26 act normally to force the dogsinwardly, and the cotter-pins limit the inward movement of the dogs. Alever 28 is pivoted at one end to a wrist pin 29 on the eccentric ll,andthe other end of the lever extends to the platform of the engine, inconvenient position to be grasped by the engineer, to move theeccentric.

In operation, when the engine is moving on the road, the ring 8 turnswith the wheel proper, while the eccentric 11 remains stationary, andwith the point of highest eccentricity downward as indicated in Fig.lVith this arrangement, as each of the dogs 22 begins to move downwardat the front of the wheel, it will be gradually extended by theeccentric, until at the. lowest point of the wheel it will be fullyextended, as

indicated in said figure. As the dog begins to move upward at the rearof the wheel, the

spring 26 adjacent thereto will begin to force the 'dog inwardly, untilwhen the dog reaches the top of the Wheel, it will be, flush with theperiphery thereof. lVhen it is not necessary to use the dogs to hold thewheel from slipping, the point of highest eccentricity is upward, thelever 28 being operated to turn the eccentric to this position.

It will be obvious that the eccentric may be moved to any desiredposition, and since the dogswhatever the position of the eccentric, arecontinuously moving inward and outward, they will be kept free from themud, and in the best possible condition for use. The rods 19 holdtherollers 24 and the inner ends of the dogs at proper position withrespect to the eccentric so that there is no binding between the dogsand the openings through which they move.

I claim:

1. A device of the character specified, in combination with the wheelhaving a hub and, a rim, and spokes connecting the hub and rim, of aring fitting one ,end of the hub and having a radial flange at its innerface, aneccentric journaled on the said ring and having a radial flangeat its inner face, a ring fitting the outer face ofthe eccentric andextending beyond the periphery thereof,

a disk fitting the hub against the outer face of the ring and'extendingbeyond the periphery thereof to hold the eccentric and the ringin place,a ring arranged between the wheel rim and the eccentric, and havingnotches for receiving the spokes, said ring and the rim of the wheelhaving registering radial openings, a dog moving in each pair ofregistering openings and having at ,its inner end a roller bearingagainst the periphery of the eccentric, rods connecting the ring, to therim, each rod being adjacent to a dog, stops extending transversely ofthe dogs and having eyes engaging the adjacent rods, springs encirclingthe I dogs between the stops and the rim, and normally forcing the dogsinwardly, and ,means connected with the eccentric for shifting the-sameangularly with respect to the wheel.

2. The combination with a wheel having a rim and a hub and having spokesconnecting the rim and the hub, of a disk mounted on for shifting theeccentric angularly on the disk and for holding the eccentric frommovement with the wheel to cause the said eccentric to extend the dogsat one part of the wheel.

FRANK RUDOLPH NYBERG.

Witnessesz.

(1C. HUDDLESTON, I. H. MYERS.

Copies of this patent maybe obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

